Electret Condenser Microphone, is a kind of acoustic power conversion device, which belongs to the capacitor microphone.The electret capacitors in the electret capacitor are used as either the diaphragm or the back pole, which can be used to store charge, so no additional polarization power is required.At the same time, the output sensitivity is greatly improved due to the built-in field effect tube.

Electret Condenser Microphone is Small volume, high temperature resistance, strong stability, low failure rate, to adapt to the environment, high sensitivity, small current, low noise, high quality